Filter cartridge dust removal device, electric appliance, and filter cartridge dust removal method

Abstract

The application relates to a filter element dust removal device, an electric appliance and a filter element dust removal method. The filter element dust removal device comprises a mounting seat provided with a mounting position for mounting a filter element; a suction member; and a pipeline assembly provided with a plurality of openable and closable blowing and suction ports, each of the blowing and suction ports is directed to a different position of the filter element located on the mounting position, and each of the blowing and suction ports is communicated with the suction member. The suction member can suck or blow air to the filter element located on the mounting position through the opened blowing and suction port. Each of the blowing and suction ports can be opened and closed, so that only one or several blowing and suction ports can be opened during use, the suction force or wind force of the suction member is concentrated in the opened blowing and suction port, the opened suction port can generate greater suction force or wind force, and the pollutants in the deep layer of the filter element can be cleaned, so that the filter element can be cleaned in depth.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a filter element dust removal device, an electric appliance and a filter element dust removal method. BACKGROUND

[0002] An air purifier, also known as an air cleaner, is a product that can adsorb, decompose or transform PM dust, pollen, odors, formaldehyde and other air pollutants, effectively improve air cleanliness, and provide clean and safe air to users, and is widely used in homes, shopping malls, factories and other places.

[0003] At present, most household air purifiers adopt adsorption type, that is, various pollutants in the air will be adsorbed by the filter element of the air purifier during the process of the air passing through the air purifier, so as to achieve the effect of purifying the air. After the air purifier is used for a long time, the filter element will accumulate a large amount of filtered pollutants, resulting in a gradual decrease in the filtering effect and cleaning capacity, and the original purification capacity cannot be maintained. At this time, the filter element needs to be replaced. Although the replacement of the filter element is convenient, most filter elements are replaced before reaching the service life, thereby greatly increasing the use cost of the user.

[0004] Therefore, after the air purifier is used for a period of time, the user can also choose to clean the filter element, so that the filter element can continue to be used by removing the accumulated pollutants in the filter element. However, since the pollutants are mostly adsorbed in the interior of the filter element, the filter element is difficult to clean, and generally needs to be combined with air blowing and knocking to separate the pollutants from the filter element. However, in the process of air blowing and knocking the filter element, the pollutants will be scattered in the air, causing air pollution and affecting the respiratory health of the user. SUMMARY

[0005] Therefore, it is necessary to provide a filter element dust removal device, an electric appliance and a filter element dust removal method in view of the problem of difficult cleaning of the filter element.

[0006] A filter element dust removal device comprises:

[0007] A mounting seat having a mounting position for mounting a filter element;

[0008] A suction member;

[0009] A pipeline assembly having a plurality of openable and closable blowing and sucking ports, each of the blowing and sucking ports being directed to a different position of the filter element located on the mounting position;

[0010] Furthermore, each of the blowing and sucking ports is in communication with the suction member, and the suction member can suck or blow air towards the filter element located on the mounting position through the open blowing and sucking port.

[0011] In one of the embodiments, the duct assembly is controllable to switch between a plurality of dust removal states, in each of which one of the blowing and sucking ports is open and the rest are closed.

[0012] The blowing and sucking ports open in the duct assembly in different dust removal states are different.

[0013] In one of the embodiments, the duct assembly comprises a duct shell and a duct body, the duct shell is provided with a plurality of the blowing and sucking ports, and the duct body is connected with the suction member and is provided with a plurality of communication ports.

[0014] The duct body is movable relative to the duct shell to switch the duct assembly between different dust removal states, in each of which the communication ports are communicated with one of the blowing and sucking ports.

[0015] In one of the embodiments, the duct body is provided with a plurality of the communication ports, each of which corresponds to one of the blowing and sucking ports, in each of the dust removal states, one of the communication ports is communicated with the corresponding blowing and sucking port, and the rest of the communication ports are spaced from the corresponding blowing and sucking ports, and in different dust removal states, the communication ports communicated with the corresponding blowing and sucking ports are different.

[0016] In one of the embodiments, all the communication ports are arranged along the circumferential direction of the duct body and are staggered in the axial direction of the duct body.

[0017] The duct shell surrounds the duct body, and all the blowing and sucking ports are arranged along the axis of the duct shell in sequence.

[0018] The duct body is rotatable about its axis to move the communication ports to align with the corresponding blowing and sucking ports.

[0019] In one of the embodiments, the filter core in the mounting position is spaced from the duct shell, and the axis of the filter core is parallel to the axis of the duct shell.

[0020] In one of the embodiments, one of the filter core in the mounting position and the duct assembly (30) is rotatable about the axis of the filter core.

[0021] In one of the embodiments, the duct assembly further comprises a plurality of support rings, each of which is mounted on the duct body and is located between two adjacent communication ports in the axial direction of the duct body.

[0022] In one of the embodiments, the pipeline assembly further comprises a plurality of extension blocks, the pipeline shell is provided with a wind channel region, the wind channel region is provided with the plurality of blowing and sucking ports, the extension blocks are arranged in the wind channel region and located between two adjacent blowing and sucking ports;

[0023] The width of each extension block in the axial direction of the pipeline shell gradually decreases in the direction away from the pipeline shell.

[0024] An electric appliance comprising a filter element and a filter element dust removal device as described above.

[0025] A filter element dust removal method, the pipeline assembly has a plurality of dust removal states, characterized in that comprising the following steps:

[0026] S1: starting the suction member, and controlling the pipeline assembly to be in one of the dust removal states;

[0027] S2: controlling the filter element to rotate one circle around its own axis;

[0028] S3: controlling the pipeline assembly to switch to the next dust removal state;

[0029] S4: repeating steps S1 to S3 until each blowing and sucking port is opened at least once.

[0030] The filter element dust removal device described above, when the filter element has been used for a long time and a large amount of filtered pollutants accumulate inside the filter element, the filter element can be placed on the mounting position of the mounting seat, one of the blowing and sucking ports is opened, and the suction member blows air or sucks air through the blowing and sucking port, so that the pollutants at the position of the filter element corresponding to the blowing and sucking port are blown away or sucked away, achieving the effect of cleaning the pollutants at the position of the filter element.

[0031] Opening different blowing and sucking ports can clean the pollutants at different positions of the filter element. Compared with only one blowing and sucking port, the filter element dust removal device can improve the cleaning area of the filter element, reduce the dust removal blind area of the filter element during cleaning, and thus improve the cleaning effect of the filter element.

[0032] In actual use, both blowing and sucking of the blowing and sucking ports can clean the filter element, but after long-term use, pollutants accumulate in the deep part of the filter element, making it difficult to separate the pollutants from the filter element. Each blowing and sucking port can be opened and closed, so that only one or a few blowing and sucking ports can be opened during use to concentrate the suction force or wind force of the suction member in the opened blowing and sucking ports, so that the opened blowing and sucking ports can generate greater suction force or wind force, thereby cleaning the pollutants in the deep part of the filter element and achieving the effect of deep cleaning of the filter element. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 A disassembled schematic view of the filter screen dust removal device in some embodiments of the present application.

[0034] Figure 2 A Figure 1 A schematic view of the pipe body in the filter screen dust removal device in some embodiments of the present application.

[0035] Figure 3 A step diagram of the filter core dust removal method in some embodiments of the present application.

[0036] Legend of reference signs:

[0037] Filter core 10;

[0038] Suction member 20;

[0039] Pipe assembly 30; suction port 31; pipe shell 32; pipe body 33; communication port 34; support ring 35; expansion block 36; air duct area 37. DETAILED DESCRIPTION

[0040] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a variety of ways other than those described herein without departing from the spirit of the present application, and it will be apparent to those skilled in the art that similar modifications of structure, materials, or use of the present application can be made without departing from the scope of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.

[0041] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0042] In addition, the terms "first", "second", and the like, if any, are used herein for descriptive purposes only and should not be construed as indicating or implying relative importance or implicating the number of indicated technical features. Thus, a feature defined with "first" or "second" can include at least one of the features explicitly or implicitly. In the description of the present application, the term "plurality" means at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0043] In the present application, unless otherwise explicitly specified and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be interpreted broadly. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0044] In the present application, unless otherwise explicitly specified and limited, if the first feature is described as "on" or "under" the second feature, etc., it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be the first feature directly above or obliquely above the second feature, or it can only mean that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature can be the first feature directly below or obliquely below the second feature, or it can only mean that the first feature is lower than the second feature in horizontal height.

[0045] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for illustrative purposes and do not represent the only implementation.

[0046] Reference Figure 1 , Figure 1An exploded schematic view of the filter core dust removal device in an embodiment of the present application is shown. The filter core dust removal device provided by the embodiment of the present application comprises a mounting seat, a suction member 20, and a pipeline assembly 30. The mounting seat has a mounting position for mounting the filter core 10. The pipeline assembly 30 is provided with a plurality of openable and closable suction ports 31. The plurality of suction ports 31 are respectively directed to different positions of the filter core 10 located on the mounting position. Each suction port is in communication with the suction member 20. When the suction member 20 is started, the suction member 20 performs the air suction or air blowing operation through the suction port.

[0047] In this way, when the filter core 10 is used for a long time and a large amount of filtered pollutants are accumulated in the filter core 10, the filter core 10 can be placed on the mounting position of the mounting seat. One of the suction ports 31 is opened. The suction member 20 performs the air suction or air blowing operation through the suction port 31 and towards the filter core 10. In this way, the pollutants at the position of the filter core 10 corresponding to the suction port 31 are sucked away or blown away. The effect of cleaning the pollutants at the position of the filter core 10 is achieved.

[0048] Different suction ports 31 can be opened to clean the pollutants at different positions of the filter core 10. Compared with the case where only one suction port 31 is provided, the cleaning area of the filter core dust removal device for the filter core 10 can be increased. The blind area of the filter core 10 that is not cleaned during the cleaning process can be reduced. In this way, the cleaning effect of the filter core 10 is improved.

[0049] In actual use, the air blowing and air suction of the suction port 31 can both achieve the cleaning effect of the filter core 10. However, after the filter core 10 is used for a long time, the pollutants are accumulated in the deep part of the filter core 10. The pollutants are difficult to be separated from the filter core 10. Each suction port 31 can be opened and closed. During use, only one or several suction ports 31 can be opened. In this way, the suction force or air force of the suction member 20 can be concentrated in the opened suction port 31. The opened suction port can generate a large suction force or air force. In this way, the pollutants in the deep part of the filter core 10 can be cleaned. The effect of deeply cleaning the filter core 10 is achieved.

[0050] In some embodiments of the present application, the pipeline assembly 30 can be controlled to switch between a plurality of dust removal states. In each dust removal state, the pipeline assembly 30 opens one of the suction ports 31 and closes the remaining suction ports 31. The pipeline assembly 30 in different dust removal states opens different suction ports 31. In this way, when the pipeline assembly 30 is in the dust removal state, the suction force or air force generated by the suction member 20 can be concentrated in the opened suction port 31. In this way, the opened suction port can generate a large suction force or air force. In this way, the pollutants in the deep part of the filter core 10 can be cleaned. The effect of deeply cleaning the filter core 10 is achieved.

[0051] By switching the pipeline assembly 30 between different dust removal states, the suction force or wind force generated by the suction member 20 can be concentrated at different suction ports, and the concentrated suction force or wind force can pass through different suction ports to deeply clean different parts of the filter element 10, thereby improving the processing effect of the filter element dust removal device on the filter element 10.

[0052] In some embodiments, the pipeline assembly 30 includes a pipeline shell 32 and a pipeline body 33. The pipeline shell 32 is provided with a plurality of blowing and suction ports 31, and the pipeline body 33 is connected to the suction member 20 and is provided with a communication port 34. The pipeline body 33 is movable relative to the pipeline shell 32, and the pipeline assembly 30 is switched between different dust removal states during the movement of the pipeline body 33. When the pipeline assembly 30 is in a dust removal state, the communication port 34 is aligned with one of the blowing and suction ports 31.

[0053] In some embodiments, only one communication port 34 is provided on the pipeline body 33. During the movement of the pipeline body 33, the communication port 34 is sequentially communicated with different blowing and suction ports 31. When the communication port 34 is communicated with one of the blowing and suction ports 31, the remaining blowing and suction ports 31 are covered and closed by the pipeline body 33, and the pipeline assembly 30 is in a dust removal state. The pipeline assembly 30 in different dust removal states has different blowing and suction ports 31 aligned with the communication port 34, so as to switch the alignment of the communication port 34 with different blowing and suction ports 31 by moving the pipeline body 33, thereby switching the pipeline assembly 30 between different dust removal states.

[0054] That is, one communication port 34 on the pipeline body 33 is sequentially communicated with different blowing and suction ports 31 during the movement of the pipeline body 33. The suction force or wind force generated by the suction member 20 can pass through the pipeline body 33 and act on each blowing and suction port 31 in sequence, thereby deeply cleaning different parts of the filter element 10 through each blowing and suction port 31.

[0055] In some embodiments, Figure 1 In some embodiments, the pipeline body 33 is further provided with a plurality of communication ports 34. Each communication port 34 corresponds to one of the blowing and suction ports 31. When the pipeline assembly 30 is in a dust removal state, one of the communication ports 34 is communicated with the corresponding blowing and suction port 31, and the remaining communication ports 34 are out of position with respect to the corresponding blowing and suction ports 31. When the pipeline assembly 30 is in different dust removal states, the communication ports 34 communicated with the corresponding blowing and suction ports 31 are different.

[0056] That is, each communication port 34 on the pipeline body 33 is sequentially communicated with the corresponding blowing and suction port 31 during the movement of the pipeline body 33. The suction force or wind force generated by the suction member 20 can pass through the pipeline body 33 and act on each communication port 34 in sequence, and finally act on each blowing and suction port 31, thereby deeply cleaning different parts of the filter element 10 through each blowing and suction port 31.

[0057] Further, in the embodiment of Figure 1 , all the communication ports 34 are arranged along the circumferential direction of the pipe body 33, and all the communication ports 34 are staggered along the axial direction of the pipe body 33, as shown in Figure 2 , when the pipe body 33 is unfolded, all the communication ports 34 are arranged along the diagonal direction of the pipe body 33 in the unfolded state of the pipe body 33. The pipe shell 32 is arranged around the pipe body 33, and all the suction and blowing ports 31 are arranged along the axial direction of the pipe shell 32.

[0058] Wherein, the pipe body 33 is rotatable around its own axis, when the pipe body 33 rotates, the communication port 34 moves with the pipe body 33, so that the communication port 34 moves to align with the corresponding suction and blowing port 31. When the pipe body 33 rotates to one of the communication ports 34 aligns with the corresponding suction and blowing port 31, the communication port 34 communicates with the corresponding suction and blowing port 31, so that the suction member 20 can suck or blow air at the corresponding suction and blowing port 31 through the communication port 34, while other suction and blowing ports 31 are not aligned with the corresponding communication port 34, so that the suction member 20 is in a state of being blocked by the pipe body 33, so that the suction force or wind force of the suction member 20 can be fully applied to the communication port 34 connected with the corresponding suction and blowing port 31, thereby achieving the effect of concentrating the suction force or wind force to clean the filter element 10 deeply.

[0059] When it is necessary to change the part of the filter element 10 to be cleaned, the pipe body 33 can be rotated so that the pipe body 33 rotates to another communication port 34 communicates with the corresponding suction and blowing port 31, so that the suction member 20 can apply suction force or wind force to another suction and blowing port 31 through another communication port 34, thereby cleaning another part of the filter element 10.

[0060] In the embodiment of Figure 1 , the pipe body 33 is provided with four communication ports 34, and the pipe shell 32 is provided with four suction ports. During the rotation of the pipe body 33, the communication port 34 at the top of the pipe body 33 will align with the communication port 34 at the top of the pipe shell 32, so that the two are in communication. Then the pipe body 33 continues to rotate, and the second communication port 34 adjacent to the top communication port 34 will align with the second suction port, so that the two are in communication. In this way, until the communication port 34 at the bottom of the pipe aligns with the communication port 34 at the bottom of the pipe shell 32, so that the two are in communication.

[0061] In some specific embodiments, the filter element 10 located at the installation position is spaced apart from the pipe housing 32, and the axis of the filter element 10 is parallel to the axis of the pipe housing 32. In this way, the multiple air inlets 31 on the pipe housing 32 will face the outer peripheral wall of the filter element 10, thereby drawing air from the filter element 10 through the air inlets 31 to achieve the effect of cleaning the filter element 10.

[0062] In other embodiments, the pipe assembly 30 may also be disposed inside the filter element 10, such that the plurality of air inlets 31 on the pipe housing 32 face the inner peripheral wall of the filter element 10, thereby blowing air onto the filter element 10 through the air inlets 31 to achieve the effect of cleaning the filter element 10.

[0063] It should be noted that in some embodiments, the filter element 10 may also be square or other shapes. Depending on the shape of the filter element 10 and the air inlet and outlet directions of the filter element 10, the pipe assembly 30 may be set at different positions of the filter element 10, which is not limited here.

[0064] In some specific embodiments, the pipe assembly 30 is located on one side of the cylindrical filter element 10. Therefore, the area covered by the blow-in port 31 on the pipe assembly 30 is relatively small, which can easily create dust removal blind spots. To address this, the pipe assembly 30 is kept stationary while the filter element 10 in the mounting position can rotate around its own axis. This rotation of the filter element 10 allows the blow-in port 31 on the pipe assembly 30 to clean each part of the filter element 10 in sequence, thus avoiding the occurrence of dust removal blind spots.

[0065] In other embodiments, the filter element 10 can remain stationary while the pipe assembly 30 rotates around the axis of the filter element 10, so that the blow-in port 31 on the pipe assembly 30 can clean each part of the filter element 10 in sequence, avoiding the phenomenon of dust removal blind spots.

[0066] In some specific embodiments, since the suction and airflow of the suction component 20 act directly on the pipe body 33, the pipe body 33 needs to have sufficient strength; otherwise, it is easily damaged by the suction and airflow of the suction component 20. Therefore, the pipe assembly 30 also includes multiple support rings 35, each of which is mounted on the pipe body 33 and located between two adjacent connecting ports 34 in the axial direction of the pipe body 33.

[0067] In other words, Figure 1 A support ring 35 is provided between two adjacent connecting ports 34 in the vertical direction, thereby reinforcing the pipe body 33 and ensuring the strength of the pipe body 33. In actual use, the support ring 35 can also be connected to an external driving component to drive the support ring 35 to rotate, and the support ring 35 in turn drives the pipe body 33 to rotate.

[0068] In some specific embodiments, since a support ring 35 is provided between two adjacent connecting ports 34 and the support ring 35 is correspondingly provided between two blowing ports 31, there will be a dust removal blind zone between the two blowing ports 31 and the part corresponding to the filter element 10. For this reason, the pipe assembly 30 also includes multiple expansion blocks 36. The pipe shell 32 has an air duct area 37, and multiple blowing ports 31 are formed in the air duct area 37. The expansion blocks 36 are provided in the air duct area 37 and are located between two adjacent blowing ports 31.

[0069] In this embodiment, the width of each expansion block 36 along the axial direction of the pipe housing 32 gradually decreases in the direction away from the pipe housing 32. Specifically, Figure 1 In this embodiment, the extension block 36 is generally triangular in shape, with the base of the triangle located between two adjacent suction ports 31, and the top of the triangle protruding away from the air duct area 37. In this way, the suction or airflow from the suction ports 31 is amplified by the extension block 36, resulting in a larger area covered by the suction or airflow. This not only improves dust removal efficiency but also avoids the problem of blind spots in dust removal corresponding to the filter element 10 in the area between the two suction ports 31.

[0070] Specifically Figure 1 In this embodiment, the air duct area 37 is a groove-shaped structure that runs through the pipe shell 32. Multiple expansion blocks 36 disposed in the air duct area 37 divide the air duct area 37 into multiple air blowing ports 31. At the same time, the expansion blocks 36 increase the coverage area of ​​each air blowing port 31 to improve dust removal efficiency and avoid dust removal blind spots.

[0071] This application also provides an electrical device, including a filter element 10 and a filter element dust removal device as described in any of the preceding claims. After using a section of the filter element 10, the electrical device can turn on the filter element dust removal device and open different blowing and suction ports 31 to clean contaminants at different locations on the filter element 10. Compared to having only one blowing and suction port 31, this can increase the cleaning area of ​​the filter element dust removal device on the filter element 10, reduce the number of dust removal blind spots that are not cleaned during the cleaning process, and thus improve the cleaning effect of the filter element 10.

[0072] And, in actual use, the blowing and suction of the blowing and suction ports 31 can clean the filter core 10, but after long-term use, pollutants will accumulate in the deep part of the filter core 10, making it difficult to separate the pollutants from the filter core 10. Each blowing and suction port 31 can be opened and closed, so that only one or several blowing and suction ports 31 can be opened during use to concentrate the suction force or wind force of the suction member 20 in the opened blowing and suction port 31, so that the opened suction port can generate a larger suction force or wind force, thereby cleaning the pollutants in the deep part of the filter core 10, achieving the effect of deep cleaning of the filter core 10.

[0073] Optionally, the above-mentioned electric appliance is an air purifier, and the filter core dust removal device can be directly arranged inside the air purifier to periodically suck the filter core 10 to clean the filter core 10. The filter core dust removal device can also be arranged separately from the part of the air purifier used for air purification, and when the filter core 10 needs to be dusted, the filter core 10 is removed and placed on the mounting position in the filter core dust removal device.

[0074] The application also provides a filter core dust removal method based on the filter core dust removal device in the embodiment, including the following steps: Figure 1 The filter core dust removal device in the embodiment includes the following steps:

[0075] S1: Start the suction member 20, and control the pipeline assembly 30 to be in a dust removal state;

[0076] S2: Control the filter core 10 to rotate one revolution around its axis;

[0077] S3: Control the pipeline assembly 30 to switch to the next dust removal state;

[0078] S4: Repeat steps S1 and S3 until each blowing and suction port 31 is opened at least once.

[0079] That is, each time the pipeline body 33 switches to one of the dust removal states, the filter core 10 rotates one revolution. When the filter core 10 rotates one revolution, the cleaning area of the filter core 10 by the opened suction port of the pipeline assembly 30 forms an annular area. By switching the pipeline assembly 30 between multiple dust removal states, multiple annular areas are formed on the filter core 10, and finally the outer circumferential surface of the filter core 10 is covered by multiple annular areas, achieving the effect of cleaning the filter core 10.

[0080] In some specific embodiments, S3 specifically includes controlling the pipeline body 33 to rotate N°, N° is the angle formed between the centers of two adjacent communication ports 34 and the axis of the pipeline body 33, and specifically to Figure 1In the embodiment shown in the drawings, the plurality of communication ports 34 are arranged uniformly around the circumferential direction of the duct body 33, so that N° = 90°, when the duct assembly 30 is in the dust removal state, the duct assembly 30 can be switched to the next dust removal state after the duct body 33 is rotated by 90°.

[0081] The technical features of the above embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not contradict, they should be considered as the scope of the present disclosure.

[0082] The above embodiments only express several implementation manners of the present application, the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A filter element dust removal device characterized by comprising: The filter core dust removal device comprises: a mounting seat having a mounting position for mounting a filter core (10); a suction member (20); a pipeline assembly (30) having a plurality of openable and closable blow and suction ports (31), each of the blow and suction ports (31) being directed towards a different position of the filter core (10) located on the mounting position; and each of the blow and suction ports (31) being in communication with the suction member (20), the suction member (20) being capable of sucking or blowing air towards the filter core (10) located on the mounting position through the open blow and suction port (31); the pipeline assembly (30) being controllably switchable between a plurality of dust removal states, the pipeline assembly (30) in any of the dust removal states being capable of opening one of the blow and suction ports (31) and closing the remaining blow and suction ports (31); the open blow and suction port (31) of the pipeline assembly (30) in different dust removal states being different.

2. The filter element dust removal device according to claim 1, characterized in that, The pipeline assembly (30) comprises a pipeline housing (32) and a pipeline body (33), the pipeline housing (32) being provided with a plurality of the blow and suction ports (31), and the pipeline body (33) being connected with the suction member (20) and provided with a communication port (34); wherein the pipeline body (33) is movable relative to the pipeline housing (32) to switch the pipeline assembly (30) between different dust removal states, the communication port (34) being in communication with one of the blow and suction ports (31) when the pipeline assembly (30) is in the dust removal state.

3. The filter element dust removal device according to claim 2, characterized in that The pipeline body (33) is provided with a plurality of the communication ports (34), each of the communication ports (34) corresponding to one of the blow and suction ports (31), one of the communication ports (34) being in communication with the corresponding blow and suction port (31) and the remaining communication ports (34) being out of position relative to the corresponding blow and suction ports (31) when the pipeline assembly (30) is in the dust removal state. The communication ports (34) in communication with the corresponding blow and suction ports (31) are different when the pipeline assembly (30) is in different dust removal states.

4. The filter element dust removal device according to claim 3, characterized in that All the communication ports (34) are arranged along the circumferential direction of the pipeline body (33) and are staggered in the axial direction of the pipeline body (33); the pipeline housing (32) surrounds the pipeline body (33), and all the blow and suction ports (31) are arranged along the axis of the pipeline housing (32) in sequence; wherein the pipeline body (33) is rotatable about its axis to move the communication ports (34) to be aligned with the corresponding blow and suction ports (31).

5. The filter element dust removal device according to claim 4, characterized in that The filter core (10) located on the mounting position is spaced apart from the pipeline housing (32), and the axis of the filter core (10) is parallel to the axis of the pipeline housing (32).

6. The filter element dust removal device according to claim 5, characterized in that One of the filter core (10) located on the mounting position and the pipeline assembly (30) is rotatable about the axis of the filter core (10).

7. The filter element cleaning device of claim 4, wherein The pipeline assembly (30) further comprises a plurality of supporting rings (35), each of which is mounted on the pipeline body (33) and located between two adjacent communication ports (34) in the axial direction of the pipeline body (33).

8. The filter element cleaning device of claim 4, wherein, The pipeline assembly (30) further comprises a plurality of expansion blocks (36), the pipeline shell (32) is provided with a duct area (37) in which the plurality of blowing and sucking ports (31) are arranged, and the expansion blocks (36) are arranged in the duct area (37) and located between two adjacent blowing and sucking ports (31). Each of the expansion blocks (36) gradually decreases in width in the axial direction of the pipeline shell (32) and in the direction away from the pipeline shell (32).

9. An electrical appliance, characterized in that The filter element (10) and the filter element dust removal device according to any one of claims 1-8.

10. A filter element dust removal method based on the filter element dust removal device according to any one of claims 1-8, the pipeline assembly (30) having a plurality of dust removal states, characterized in that the method comprises the following steps: S1: starting the suction member (20) and controlling the pipeline assembly (30) to be in one of the dust removal states; S2: controlling the filter element (10) to rotate one revolution around its axis; S3: controlling the pipeline assembly (30) to switch to the next dust removal state; S4: repeating steps S1-S3 until each of the blowing and sucking ports (31) is opened at least once.

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